Download fails entirely.
Download link provided is: http://downloads.wordpress.org/plugin/debuggify.1.0.zip
This link is shown when viewing most tabs. When you view the support or reviews tabs, the download link is shown below.
downloads.wordpress.org/plugin/debuggify.latest-stable.zip

The last link works, the first show a 404.

I have provided some support to a quora user who was having a similar issue. You may need to report this to wordpress.

If I try to add your plugin to my site, it fails. Instead, I have to download it, then upload it as it uses the wrong link which causes a 404.